1 /* Simple work-around for running the 64-bit Adobe Flash plug-in version 10
2 on Athlon64 processors without support for the lahf instruction.
5 cc -fPIC -shared -nostdlib -lc -oflashplugin-lahf-fix.so flashplugin-lahf-fix.c
6 Then place the .so file in the plug-in directory (e.g. $HOME/.mozilla/plugins)
7 or use LD_PRELOAD to force Firefox to load the library.
9 - Maks Verver <maksverver@geocities.com> July 2009 */
16 static void sig_handler(int signal, siginfo_t *info, void *context) {
17 if (signal != SIGILL) return;
18 if (*(char*)info->si_addr != (char)0x9f) abort();
19 greg_t *regs = ((ucontext_t*)context)->uc_mcontext.gregs;
20 ((char*)®s[REG_RAX])[1] = ((char*)®s[REG_EFL])[0];
24 static struct sigaction old_sa, new_sa = {
25 .sa_flags = SA_SIGINFO,
26 .sa_sigaction = &sig_handler };
28 int _init() { sigaction(SIGILL, &new_sa, &old_sa); return 0; }
29 int _fini() { sigaction(SIGILL, &old_sa, &new_sa); return 0; }